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Finding the Fourth Proportional to 161,262.60, 241,778.70 and 72,443.40

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Solution

The fourth proportional to 161,262.60, 241,778.70 and 72,443.40 is: 108,613.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,262.60 : 241,778.70 = 72,443.40 : x
  2. Step 2: Convert to fraction form
    161,262.60/241,778.70 = 72,443.40/x
  3. Step 3: Cross multiply
    161,262.60x = 241,778.70 × 72,443.40
  4. Step 4: Simplify right side
    161,262.60x = 17,515,271,075.58
  5. Step 5: Solve for x
    x = 17,515,271,075.58/161,262.60
  6. Step 6: Final answer
    x = 108,613.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.